Covid-19 is continuing to SLOTXO spread around the world, with more than 190 million confirmed cases and more than four million deaths across nearly 200 countries.
Confirmed cases have been rising steeply since the middle of last year, but the true extent of the first outbreaks in 2020 is unclear because testing was not then widely available.
The 100 millionth Covid case was recorded at the end of January - about a year after the first officially diagnosed case of the virus.
Who has vaccinated the most?
Several coronavirus vaccines have been approved for use, either by individual countries or groups of countries, such as the European Union and the World Health Organization (WHO).
Of the 194 countries and territories administering vaccines and publishing rollout data, 67 are high-income nations, 101 are middle-income and 26 low-income.
The map below, using figures collated by Our World in Data - a collaboration between Oxford University and an educational charity - shows the total number of doses given per 100 people, mostly first doses.
Overall, China and India have administered the highest number of doses, with about 1.5 billion and 400 million respectively. The US ranks third, with more than 338 million.
But when breaking the figures down by doses per 100 people in countries with a population of at least one million, the United Arab Emirates, Bahrain and Uruguay top the list.